基于太阳能的有机朗肯循环低温热发电系统热力性能分析

Thermodynamic analysis of low-temperature power generation based on solar organic Rankine cycle

研究了汽轮机进口温度和进口压力对基于太阳能的有机朗肯循环系统性能的影响。以R600,R600a,R245fa,R236fa,R236ea,R601,R601a,RC318,R227ea九种有机工质为例,基于热力学第一定律和第二定律,研究了这两个参数对系统性能变化的影响,主要是对系统热效率、净输出功率以及系统总不可逆损失的影响。

The impact of the turbine output temperature and pressure on the system performance of organic Rankine system was investigated.In this paper,nine kinds of organic fluids including R600,R600a,R245fa,R236fa,R236ea,R601,R601a,RC318 and R227ea were taken as cycle working medium.Based on the first and second law of thermodynamics,the thermodynamics analysis revealed the relationship between these two parameters and cycle performances,primarily covering system thermal efficiency,net output power and system irreversibility.